Solvers had to highlight the BINARY (101010111110) and HEXADECIMAL (ABE) forms of the PUZZLE NUMBER (2750), thereby both filling in the otherwise-isolated squares and, via the latter hex form, explaining the significance of the title.
First prize Jon Duckworth, Nottingham
Runners-up Frances Whitehead, Harrogate; Tom Woolford, New Longton, Preston
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